As More Ways to enter the USA are blocked migrants are forced to take ever more perilous routes.The Darien Gap is a lawless wilderness on the border of Colombia and Panama, teeming with everything from deadly snakes to anti government guerrillas. The region now sees a flow of migrants from Cuba, Africa, and Asia, whose desperation sends them on perilous journeys to the U.S. Jason Motlagh plunged in, risking robbery, kidnapping, and death to document one of the world’s most harrowing treks.